Design, Optimization and Characterization of Metformin Hydrochloride Loaded Biodegradable Microspheres using Box Behnken design for Local Delivery in Periodontitis. International Journal of Pharmaceutical Sciences and Drug Research, [S. l.], v. 15, n. 3, p. 310–316, 2023. DOI: 10.25004/IJPSDR.2023.150311. Disponível em: https://ijpsdronline.com/index.php/journal/article/view/6548.. Acesso em: 18 oct. 2025.